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Appendix A. The project area is developed with residential and commercial uses and the project site consists of a city park that is bordered on all sides by residential development. The project site is mapped within the Dublin USGS 7.5 -minute quadrangle. METHODS Database Search and Information Review The latest version of the California Natural Diversity Database (CNDDB 2018) was reviewed for the project area. The intent of the database review was to document all occurrences of special - status species in the project area and to determine their location relative to the project site. Commercially available orthorectified aerial photography and hydrology data was also reviewed to generally identify habitat types and features occurring on and near the project site. Site Visit Josh Phillips (Principal Biologist of Pacific Biology) conducted a site visit on March 6, 2018. The site visit included walking the entire project site to obtain 100 percent visual coverage, recording the dominant plant species present, characterizing the habitat types present on and near the project site, and identifying all wildlife species observed. A visual search was conducted for the presence of jurisdictional habitats (e.g., wetlands, creeks), sensitive habitats (e.g., native grasslands), and habitat features (e.g., small mammal burrows) used by special -status species known from the project region. RESULTS Existing Conditions The project site is located entirely within Ken Mercer Sports Park, which is developed with athletic fields and is actively used for recreational sports. The ground cover consists entirely of mowed and irrigated turf grasses, dirt baseball infields, and paved pathways. There are mature trees scattered throughout the park, with a row of trees near the proposed booster station, a cluster of trees near the center of the proposed conduit bore, and another cluster of trees near the proposed tie-in location. The trees within the park appear to have mostly been planted as landscaping and include ornamental pines (Pinus sp.), eucalyptus (Eucalyptus sp.), sweetgum (Liquidambar styraciflua), and other species. The trees near the tie-in location consists primarily of coast live oak (Quercus agrifolia), a native species. There are no vernal pools, wetlands, streams, riparian habitat or natural habitats on the project site. 3